/*
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 * and open the template in the editor.
 */

package jobportal.student;

import java.io.IOException;
import java.io.PrintWriter;
import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.Statement;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import jobportal.Dbconn;

/**
 *
 * @author Ajay Kumar "Mukund"
 */
public class Changepassword extends HttpServlet {
   
    /** 
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        PrintWriter out = response.getWriter();
        RequestDispatcher rd=request.getRequestDispatcher("changepass.jsp");
        try {
            Connection con=Dbconn.getConn();
            Statement st=con.createStatement();
            ResultSet rs;
            HttpSession session=request.getSession();
            String uname=(String) session.getAttribute("username");
            if(uname==null||uname.equals("")){
                response.sendRedirect("../index.jsp?status=You must login to apply this job");
            }
           String sql="update student set password='"+request.getParameter("new_pass")+"' where username='"+uname+"' and password='"+request.getParameter("old_pass")+"'";
           if(st.executeUpdate(sql)>0){
                request.setAttribute("cpass","<strong><font color=green>Password Successfully changed</font></strong>");
                rd.forward(request, response);
           }else{
               request.setAttribute("cpass", "<strong><font color=red>Error! Invalid Old Password</font></strong>");
               rd.forward(request, response);
           }
            
        }catch(Exception e){
            request.setAttribute("cpass", "<strong><font color=red>Exception! "+e+"</font></strong>");
            rd.forward(request, response);
        } finally { 
            out.close();
            
        }
        
    } 

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /** 
     * Handles the HTTP <code>GET</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
        processRequest(request, response);
    } 

    /** 
     * Handles the HTTP <code>POST</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Returns a short description of the servlet.
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>

}
